Some comedians, like W. Kamau Bell, got cheeky with their tweets. Bell pretended to be Donald Trump and called himself a "pretend billionaire" and "hater," while Natasha Leggero started out in earnest before claiming she used to answer a phone at a brothel.

Some of the tweets are surprising -- one of Mira Sorvino's first jobs was working in Beijing as a teacher, for example. It's hard to imagine some of these stars working some of these jobs, but you won't have to imagine CBS News' Mo Rocca as a "Psychiatric Hospital Model": He included a throwback photo of himself on the job.